said the bear, "yes. Good fighters. Go well." She stopped in sight of the little huddle of stone houses and her daemon perched on her fist. The thought filled them both with fear. But it had been said, and the little paper package was safe in Ama's pocket, and they knew how to use it. "But I think I have stepped outside bear nature in mending this knife. I think I've been as foolish as lofur Rakinson. Time will tell. But I am uncertain and doubtful. Now you must tell me: why did the knife break?" The golden monkey picked his way lightly to the mouth of the cave and sat once more watching the path. Mrs. Coulter dipped a flannel in a basin of cold water and mopped Lyra's face, and then unfastened the sleeping bag and washed Lyra's arms and neck and shoulders, for Lyra was hot. Then her mother took a comb and gently teased out the tangles in Lyra's hair, smoothing it back from her forehead, parting it neatly. Looking at the alethiometer, Will remembered something Lyra had said about reading it: something about the state of mind she had to be in to make it work. It had helped him, in turn, to feel the subtleties of the silver blade. "I never asked her about my father and mother, and I can't ask the alethiometer, either, now... I wonder if I'll ever know?" During dinner the Master and Dame Hannah talked of what had happened in Lyra's absence, and she listened in dismay, or sorrow, or wonder. When they withdrew to his sitting room for coffee, the Master said: "No response," he said somberly. "You found an open space?" Getting themselves aboard the zeppelin was hazardous for the spies, not least because of the equipment they had to carry. Apart from the lodestone resonator, the most important items were a pair of insect larvae, and their food. When the adult insects emerged, they would be more like dragon-flies than anything else, but they were not like any kind of dragonfly that the humans of Will's world, or Lyra's, would have seen before. They were very much larger, for one thing. The Gallivespians bred these creatures carefully, and each clan's insects differed from the rest. The Chevalier Tialys's clan bred powerful red-and-yellow-striped dragonflies with vigorous and brutal appetites, whereas the one the Lady Salrnakia was nurturing would be a slender, fast-flying creature with an electric blue body and the power of glowing in the dark. Iorek Byrnison said nothing for a long time, but turned his head to look out at the darkness. Then he slowly got to his feet and stalked to the cave mouth, and looked up at the stars: some the same as those he knew, from the north, and some that were strange to him. "We've seen worse than them, after all." The moon was bright and high in the sky. There was a lively wind, and the great landscape was mottled with cloud-shadows, moving, Mary thought, like the migration of some herd of unimaginable beasts. But animals migrated for a purpose; when you saw herds of reindeer moving across the tundra, or wildebeest crossing the savanna, you knew they were going where the food was, or to places where it was good to mate and bear offspring. Their movement had a meaning. These clouds were moving as the result of pure chance, the effect of utterly random events at the level of atoms and molecules; their shadows speeding over the grassland had no meaning at all. "Who was that?" said Will, trembling, facing the two angels. "You don't. You're a thoughtless, irresponsible, lying child. Fantasy comes so easily to you that your whole nature is riddled with dishonesty, and you don't even admit the truth when it stares you in the face. Well, if you can't see it, I'll tell you plainly: you cannot, you must not risk your death. You must come back with us now. I'll call Lord Asriel and we can be safe in the fortress in hours." "No," said Lyra, "except that it was by a river." "You should destroy it at once," he told her. "One single hair would be enough, the man said." If her guess about these universes was right, and they were the multiple worlds predicted by quantum theory, then some of them would have split off from her own much earlier than others. And clearly in this world evolution had favored enormous trees and large creatures with a diamond-framed skeleton. "I'll have to close it once we're through," Will said. He hurled himself at Will, shaking his arm, his shoulder, his hands, and the attacker was trying to shout again, but Baruch's hand was over his mouth. From above came a deep tremor, like a mighty dynamo, almost too low to hear, though it shook the very atoms of the air and jolted the marrow in Will's bones. "Ah, but I knew about them. I used to be a nun, you see. I thought physics could be done to the glory of God, till I saw there wasn't any God at all and that physics was more interesting anyway. The Christian religion is a very powerful and convincing mistake, that's all." She reached the canopy in less time than she'd anticipated. The climbing was straightforward, the rope was kindly on her hands, and although she hadn't wanted to think about the problem of getting on top of the first branch, she found that the deep fissures in the bark helped her to get a solid purchase and feel secure. In fact, only fifteen minutes after she'd left the ground, she was standing on the first branch and planning her route to the next. Behind them, the rest of the bears were engaging with the strange cavalry, helped by the Gallivespians, whose stings enraged the horses. The lady on the blue hawk skimmed low and called: "Straight ahead now! Among the trees in the valley!" Ghosts.